cal | GREP_COLOR='1;32' grep -w -A4 -B6 --color "$(date +%e)"
Alias with
alias today="cal | GREP_COLOR='1;32' grep -w -A4 -B6 --color "$(date +%e)"
# or add to .aliases file
(echo ""; echo alias cal | GREP_COLOR='1;32' grep -w -A4 -B6 --color "$(date +%e)"') >> ~/.aliases
👀